In Wuthering Heights, what name does Mr. Lockwood notice on the threshold of Wuthering Heights?

The answer to this question can be found in Chapter One of
this incredible and memorable novel. This chapter narrates the first visit that Lockwood
pays to the owner of the house that he is renting, Thrushcross Grange, and his
impressions of the misanthropic Heathcliff and of his abode, Wuthering Heights. Consider
the following quote and the gothic details that we are presented
with:

Before
passing the threshold, I paused to admire a quantity of grotesque carving lavished over
the front, and especially about the principal door; above which, among a wilderness of
crumbling griffins and shameless little boys, I detected the date "1500," and the name
"Hareton Earnshaw."

Lockwood
goes on to say that he would have liked to inquire for more information about the
history of this date and name, but the surly and reticent disposition of his host did
not exactly encourage his inquisitive nature. Thus the name on the threshold is that of
Hareton Earnshaw, and the history is something that the rest of the novel will come to
reveal.